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A
747-400
MAINTENANCE MANUAL
SEE A
1. INPUT ROD TO THE UPPER RUDDER
B RATIO CHANGER
B
6. INPUT 2. RUDDER TRIM CONTROL ACTUATOR ROD
3. CRANK ASSEMBLY
RIG PIN R-4
C
5. RUDDER AFT SEE B
A
QUADRANT
4. FEEL, CENTERING AND TRIM
C
MECHANISM
A
CABLE RB
CABLE RA
A
TOP
ADJUSTABLE
STOP
TRAILING EDGE OF
THE LOWER RUDDER OUTPUT CRANK OF THE FEEL, CENTERING
0.12 INCH AND TRIM
(WIDTH OFRUDDER INDEX GROOVE)MECHANISM INDEX TAB
BOTTOM
ADJUSTABLE
0.24 INCH
RUDDER
STOP (WIDTH OF
INDEX PLATE
INDEX TAB)
B-B LOWER RUDDER ALIGNED WITH THE INDEX TAB (VIEW FROM THE REAR)
A-A
Rudder Feel, Centering and Trim Mechanism Installation
Figure 401 (Sheet 1)
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27-21-11
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL
1. INPUT ROD TO THE UPPER RUDDER RATIO CHANGER
10. BOLT
11. WASHER
6. INPUT CONTROL 9. NUT 7. BOLT 8. WASHER 12. NUT 13. WASHER 14. NUT 15. OUTPUT CONTROL OVERRIDE MECHANISM ROD TO THE ROLLOUT
ROD
29. INPUT CRANK
3. CRANK ASSEMBLY
28. OUTPUT CRANK
16. TENSION SPRING
40.
BOLT
41.
WASHER 17. TENSION
42.
WASHER SPRING
43.
WASHER
44.
NUT
18.
BOLT
19.
WASHER
20.
NUT (2 LOCATIONS)
21.
EYEBOLT (2 LOCATIONS)
22.
BUSHING
27. RETAINER (2 LOCATIONS)
(2 LOCATIONS) 1
26. RETAINER 23. COMPRESSION (2 LOCATIONS) SPRING (2 LOCATIONS)
24.
NUT (2 LOCATIONS)
25.
INPUT ROD TO THE LOWER RUDDER RATIO CHANGER
NOTE: RUDDER TRIM ACTUATOR OMITTED FOR CLARITY
B
1
0.005-0.030 INCH CLEARANCE NECESSARY WITH THE CAM IN THE DETENT
Rudder Feel, Centering and Trim Mechanism Installation
Figure 401 (Sheet 2)
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747-400 MAINTENANCE MANUAL
3. CRANK 29. INPUT 28. OUTPUT ASSEMBLY CRANK
SUPPORT STRUCTURE
FEEL, CENTERING AND TRIM MECHANISM AFTER THE INSTALLATION
C-C
Rudder Feel, Centering and Trim Mechanism Installation
Figure 401 (Sheet 3)
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747-400 MAINTENANCE MANUAL
(b)
P7, Overhead Circuit Breaker Panel
1) 7D7, FLT CONT CMPTR SERVO L
2) 7D8, FLT CONT CMPTR PWR L
3) 7D12, FLT CONT CMPTR SERVO C
4) 7D13, FLT CONT CMPTR PWR C
5) 7D14, FLT CONT CMPTR SERVO R
6) 7D15, FLT CONT CMPTR PWR R
(c)
P180, DC Power Distribution Panel
1) 180H8, ELEV/RUD VLV SYS 1
2) 180E7, ELEV/RUD VLV SYS 2
3) 180H23, ELEV/RUD VLV SYS 3
4) 180E22, ELEV/RUD VLV SYS 4
S 014-006
(4)
Remove the access panels 324FR and 324FL to get access to the feel, centering and trim mechanism.
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